A 140 × 25 mm straight-grain WPC decking board, co-extruded in one piece from wood-plastic composite. The 140 mm face is a standard, well-proportioned width — boards line up cleanly and the finished deck looks even, neither cramped nor heavy. Four square holes run evenly through the core, and with flat, upright walls taking the load, the profile resists bending and compression and keeps its shape under years of foot traffic. At 25 mm it sits right at the balance point between strength and weight: noticeably more substantial underfoot than a 24 mm board, yet lighter and more material-efficient than a 30 mm one — easier to ship, faster to lay, and less demanding on joists and sub-base. The 140 × 25 is the balanced pick — for premium residential decks and light commercial spaces where strength, feel and cost all have to hold up.